Hardware Readiness Tests

Goal: veriffy the readiness of the inital hardware by excerising quick functional test items to unblock software development.

Test Items:

First article inspection: all tests that doesn't require software.

• visual check

  • damages

  • correct component stuffing option (check against Bom and Schematic)

  • correct component orientation (check pin 1 marking for ICs and Diodes)

• Xray check for BGA cracks

• Open and short check on critica power rails (inputs, regulator outputs)

• Impedance check (impedance of unpowered power supply rails should be high impedance, record anything below 100K Ohms)

• correct nominal voltages when input power is supplied

• correct clock frequencies for external clocking sources such as a Crystal.

Bring up: it's the step to bring up the embedded system with correct firmware and full functionality.

• correct nominal voltages

• correct power on sequences

• SoC has the right boot sequences (i.e load the device firmware from the right source such as an JTAG programmer)

• Write and Read periphearls device IDs (i.e write a know byte into a register and read it back)

• load the bootloader and device can boot to system image.